NPA Codes in USA starting with 5
NPA | Country | Time Difference (From GMT) | State | State Abbrv. | Service Date | Comments |
500 | USA | | Personal Communication Services | | | |
501 | USA | -6 | Arkansas | AR | | |
502 | USA | -5 | Kentucky | KY | | |
503 | USA | -8 | Oregon | OR | | |
504 | USA | -6 | Louisiana | LA | | |
505 | USA | -7 | New Mexico | NM | | |
507 | USA | -6 | Minnesota | MN | | |
508 | USA | -5 | Massachusetts | MA | | |
509 | USA | -8 | Washington | WA | | |
510 | USA | -8 | California | CA | 02 Sep 1991 | |
512 | USA | -6 to -7 | Texas | TX | | |
513 | USA | -5 | Ohio | OH | | |
515 | USA | -6 | Iowa | IA | | |
516 | USA | -5 | New York | NY | | |
517 | USA | -5 | Michigan | MI | | |
518 | USA | -5 | New York | NY | | |
520 | USA | -7 | Arizona | AZ | 19 Mar 1995 | |
530 | USA | -8 | California | CA | 01 Nov 1997 | |
531 | USA | -6 | Nebraska | NE | 26 Jun 2010 | |
534 | USA | -6 | Wisconsin | WI | 17 Oct 2009 | |
539 | USA | -6 | Oklahoma | OK | 07 Aug 2010 | |
540 | USA | -5 | Virginia | VA | 15 Jul 1995 | |
541 | USA | -8 | Oregon | OR | 05 Nov 1995 | |
551 | USA | -5 | New Jersey | NJ | 01 Jul 2001 | |
555 | USA | | Not Available | | | Used by Hollywood ... |
557 | USA | -5 | Missouri | MO | | Suspended |
559 | USA | -8 | California | CA | 14 Nov 1998 | |
561 | USA | -5 to -6 | Florida | FL | 13 May 1996 | |
562 | USA | -8 | California | CA | 25 Jan 1997 | |
563 | USA | -6 | Iowa | IA | 25 Mar 2001 | |
564 | USA | -8 | Washington | WA | 28 Aug 2017 | |
567 | USA | -5 | Ohio | OH | 01 Dec 2001 | |
570 | USA | -5 | Pennsylvania | PA | 05 Dec 1998 | |
571 | USA | -5 | Virginia | VA | 01 Mar 2000 | |
573 | USA | -5 | Missouri | MO | 07 Jan 1996 | |
574 | USA | -5 | Indiana | IN | 15 Jan 2002 | |
575 | USA | -7 | New Mexico | NM | 07 Oct 2007 | |
580 | USA | -6 | Oklahoma | OK | 01 Nov 1997 | |
585 | USA | -5 | New York | NY | 15 Nov 2001 | |
586 | USA | -5 | Michigan | MI | 22 Sep 2001 | |
See World Zone 1 for explanation of "NPA"
Where shown:
Time Diff. |
is with respect to GMT (UCT) |
Suspended
Pending
Proposed |
indicate the code is not in use: the "Service Date" has been delayed or not set |
Service Date |
is the date code becomes (or became) effective. If no date is shown, the code was introduced before 1995 |